HARFLEUR, a port of France in the department of Seine Inf erieure, about 6 m. E. of Havre by rail. Pop. (1931) 5,012. It lies in the valley of the Lezarde, near the estuary of the Seine. Harfleur is identified with Caracotinum, the principal port of the ancient Calates. In the middle ages, when its name, Herosfloth, Harofluet or Hareflot, still indicated its Norman derivation, it was the principal seaport of north-western France. In 1415 it was cap tured by Henry V. of England, but in 1435 the people of the district of Caux rose against the English, and got rid of the foreign yoke. Between 1445 and 1449 the English were again in posses sion; but the town was recovered for the French by Dunois. In the i6th century the port began to dwindle in importance owing to the silting up of the Seine estuary and the rise of Havre. In 1562 the Huguenots put Harfleur to pillage, and its registers and charters were destroyed; but its privileges were restored by Charles IX. in 1568, and it was not till 1 7 1 o that it was sub jected to the "taille." The port was improved on the opening of the Tancarville canal (1887) connecting it with the port of Havre and with the Seine. Vessels drawing 18 ft. can moor alongside the quays of the new port, which is on a branch of the canal, has some trade in coal, timber and grain, and carries on fishing. The church of St. Martin with its lofty stone steeple forms a landmark for the pilots of the river. It dates from the 15th and 16th centuries. Of the old castle there are only insignificant ruins. The industries include distilling, metal founding, flour milling and the manufac ture of oil and grease.